Greater London · London and the South East
Electronic Leak Detection in Roxbourne
Electronic leak detection for homes and businesses in Roxbourne. More than 5,000 surveys completed across London and South East England.
- Leaking laps in the waterproofing
- Breaches around outlets and penetrations
- Breaches hidden under paving or planting
How electronic leak detection works in Roxbourne
ELD is a way of pinpointing breaches in a flat roof’s waterproofing membrane. It works with an electrical current which can only get through the membrane at a breach. That lets us locate holes that are too small to see so your roofer knows exactly where to repair. The results come in a report with photos. We survey green roofs, liquid-applied waterproofing and single-ply roofs, and people most frequently book us about failed seams and laps and breaches around outlets and penetrations.
Across London, flat roofs are everywhere, from back additions and dormers to roof terraces, blocks of flats and offices. Coverings range from felt and asphalt to EPDM rubber, GRP fibreglass and single-ply membranes, each with its own weak points. In Roxbourne, as anywhere in London, the right approach depends on what the roof is made of. Older flat roofs are frequently felt or asphalt, newer ones rubber or GRP.
Nothing in the report is left vague: where something needs attention, it says so plainly, and where it can wait, that’s said too.
- Where
- Roxbourne (HA5, HA2, HA4)
- Region
- Greater London
- Price
- Quoted for your roof
- Reports
- A written report with photos, by email
- Appointments
- Monday to Sunday, daytime
- Cover
- PI and public liability insurance
- Phone
- 07833 053749
- Last updated
- 27 October 2026
What this survey cannot tell you
We only report whatever is safely visible on the day, so some things are outside what a survey can do:
- Fixing the holes we find
- Sections we can’t safely access
- The extent of water in the insulation
If in doubt, ring 07833 053749 or use the contact form and we will point you to the right survey before you book. The full list of what we check.
What we check
- Green roofs
- Roof terraces and balconies
- Single-ply roofs
- Flat roof membranes
- Liquid-applied waterproofing
- Commercial flat roofs
Roof by roof
Single-ply membranes
Single-ply can be punctured by tools or fixings. Testing helps find them.
Inverted and paved roofs
If the build-up rules out ELD, we’ll say so.
Electronic leak detection in Roxbourne: local notes
Further from the centre, London’s housing takes in interwar semis with hipped roofs in clay or concrete tiles as well as slate-roofed terraces. If your home in Roxbourne is one of them, bay roofs, hips and later dormers each have their own details. Mixed in with those pitched roofs are a good many flat ones, over rear extensions, dormers, garages and shops. Historic houses such as Headstone Manor, about 1.8 miles north-east, show how far back building in the area around Roxbourne goes. If your house is among the older ones, expect a mix of original materials and later repairs on the roof, and the council can say whether a home is in a conservation area.
For site and facilities teams at buildings such as The Moriah Jewish Day School, ponding and blocked outlets on a wide flat roof are worth catching before the next wet season. If you let a flat or house near South Ruislip station, flat roofs on let property tend to be checked only when they fail, which is the costly way round.
Roxbourne is about 1 mile east of Ruislip, in Greater London. Houses, flats, blocks and commercial buildings in Roxbourne can all book electronic leak detection, with a written report and photographs every time. Our area takes in places right across Greater London. London is in our area too.
We work across the HA5, HA2 and HA4 postcode area for electronic leak detection. Streets in the area include Kings Road, The Avenue and Torbay Road. Close by, we survey roofs in Rayners Lane (1 mile east), Eastcote (1 mile north-west), North Harrow (1 mile north-east), South Ruislip (1 mile south) and Pinner (1 mile north). Larger places within reach include London (13 miles south-east), City of Westminster (11 miles south-east), Marylebone (11 miles east), Kensington (9 miles south-east), St Pancras (12 miles east) and Shoreditch (14 miles east).
Local landmarks in Roxbourne
In Roxbourne, that means homes and buildings near Heathfield School, Pinner High School and Venue 5 pub. The nearest railway station is South Ruislip station, about 1.4 miles south-west of the centre. Well-known places in the area include Heath Robinson Museum (1.2 miles north) and St. George's Shopping Centre (1.9 miles east). Green spaces nearby include Northala Fields and Islip Manor Meadows.
Signs you need electronic leak detection in Roxbourne
On a flat roof, water spreads under the waterproofing. The leak may show some distance from where water gets in which makes it hard to find by looking.
Look out for signs like these:
- Gaps at membrane joints
- Breaches hidden under paving or planting
- Leaks at pipes, outlets or fixings
- Holes left by work on the roof
For an older house near a landmark like St. Andrew’s Church, the flat roofs on later extensions tend to wear out long before the main roof.
What to check before booking
- What they will not be able to tell you
- What exactly goes into their report
- Whether the roof space is looked at, where there is one
- Their insurance cover
Places near Roxbourne
More services for Roxbourne
Why it’s worth a survey now in Roxbourne
Repairs in the wrong place leave the leak in place. ELD shows the actual breach points. Blocked gutters and hoppers on London houses overflow and soak brickwork, which can lead to damp inside. A blocked outlet ignored for a winter or two can mean damp walls inside.
All our prices include VAT. We quote electronic leak detection for each roof, as the method and time depend on the roof. We confirm the price for your roof before booking.
Why book us in Roxbourne
- Insured for professional indemnity and public liability
- Drones and thermal imaging where applicable
- Over 5,000 surveys carried out
- 98% of clients satisfied
Take a look at our cost guide or our case studies.
Tips from our surveys
Some practical points come up on survey after survey. They apply to most roofs:
- Consider ELD before paving or planting goes on
- Keep a note of leaks after rain
- Have roof specifications to hand
- Make sure trades protect the waterproofing
The report records each breach location with photos. Your roofer uses it to carry out repairs.
Clear flat roof outlets regularly. Water that sits on the roof finds breaches faster.
What happens on the day
Before we start, let us know why you’ve booked: buying, a leak, storm damage, new work or just wanting to know where things stand. That way we can focus on what matters to you. Most visits take a length of time set by the roof’s area and construction, and we’ll give you a guide when quoting. From the street, a London terrace typically shows only its front slope or parapet, so a visit in Roxbourne moves between viewpoints: the pavement, upstairs windows, the loft and any safe spot at the back. Shared stairs or a basement flat? Let us know who holds the keys.
- We ask about the roof, its age, its membrane and where leaks appear inside.
- We confirm whether the roof is suitable for electronic testing.
- The method depends on the membrane and what sits above and below it.
- The roof is tested and any breaches are located.
- You get a report showing where each breach is, for your roofer to repair.
Getting ready for the survey
- For flats, make sure roof access has been agreed
- If you are buying, let the agent know when we’re coming
- Note where any stains or damp appear
Getting a price
You can call us seven days a week. For a price or to book, ring 07833 053749 or use the contact form.
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FAQs for Roxbourne
Do you carry out roof surveys in Roxbourne?
Yes, Roxbourne is within the area we cover. We work right across London and South East England. You can phone 07833 053749 or use the contact form with the address and some details.
Does a conservation area affect roof work in Roxbourne?
Your council is the best source, with Historic England’s list for listed buildings. A change of roofing material may need consent in either case, and councils can also use Article 4 directions.
What insurance do you have?
Our surveys are covered by professional indemnity and public liability insurance. Ask if you need details for a managing agent or building owner.
Do I have to be there for the survey?
If the survey includes the loft or the inside of the building, someone needs to let us in. Access is agreed with you when you book.
Will I get photos?
Yes. The report includes photos of what we found, so you can see each point for yourself.
How much does electronic leak detection cost?
We quote electronic leak detection for each roof, as the method and time depend on the roof. The price depends on the roof’s size and build-up. To get a quote, ring 07833 053749 or email us.
Is it the same as a RICS Level 2 or Level 3 survey?
No. It’s a specialist roof survey, not a RICS Level 2 or Level 3 building survey. It focuses on the roof, so it sits alongside a building survey rather than replacing it.